]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
accel/ivpu: Fix deadlock in ivpu_ms_cleanup()
authorJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Tue, 25 Mar 2025 11:43:05 +0000 (12:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 20 Apr 2025 08:18:09 +0000 (10:18 +0200)
commitf996ecc789b5dbaaf38b6ec0a1917821789cbd9c
tree14ee70cd57b60abad95e60aef219cbcddd22782f
parent136da233a055bf42e7a4524fad77a9267000c99c
accel/ivpu: Fix deadlock in ivpu_ms_cleanup()

commit 9a6f56762d23a1f3af15e67901493c927caaf882 upstream.

Fix deadlock in ivpu_ms_cleanup() by preventing runtime resume after
file_priv->ms_lock is acquired.

During a failure in runtime resume, a cold boot is executed, which
calls ivpu_ms_cleanup_all(). This function calls ivpu_ms_cleanup()
that acquires file_priv->ms_lock and causes the deadlock.

Fixes: cdfad4db7756 ("accel/ivpu: Add NPU profiling support")
Cc: stable@vger.kernel.org # v6.11+
Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250325114306.3740022-2-maciej.falkowski@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/accel/ivpu/ivpu_ms.c